Beneath Earth s surface, nearly 3,000 kilometers down, lies a mysterious layer where seismic waves speed up inexplicably. For ...

Tsunamis pose a risk to the entirety of the California coast. But should a major one strike, how bad could it be?

Near-shore tsunamis, those triggered by earthquakes just off the coast, could pose a particularly dire risk for California’s ...

The project has been reviewed for potential impacts on the environment, water resources, biological resources, energy use, access, geological ... Record No. The County of Humboldt is considering ...

The most recent risk assessment, outlined in maps that were published by the ... The magnitude 7 quake Dec. 5 off the Humboldt County coast — which prompted a tsunami warning affecting millions ...

Ryan Derby, director of Humboldt County’s Office of Emergency ... the California Geological Survey’s website with interactive ...

Concentrated in Humboldt County, it shook the coast north of Eureka to the Mendocino County border, according to USGS maps. Three smaller quakes followed throughout the night, the last (3.0 or ...

A magnitude 4.1 earthquake struck off the Northern California coast after midnight on Tuesday, the U.S. Geological Survey said. Several smaller quakes followed. The magnitude 4.1 quake hit at 12: ...

A small aftershock rumbled near Petrolia Friday evening, a day after a magnitude 7.0 earthquake struck off the coast of Humboldt County and ... according to the U.S. Geological Survey.

in Humboldt County, according to the U.S. Geological Survey. The USGS estimated that more than 1.3 million people lived close enough to the quake to feel it in some capacity. The map below shows ...

The USGS map shows the epicenter for the 10:44 ... 3's Michelle Bandur talked to the California Highway Patrol's Humboldt County division about their response to Thursday's earthquake.